2104875785 has 8 divisors (see below), whose sum is σ = 2531686920. Its totient is φ = 1680009984.

The previous prime is 2104875781. The next prime is 2104875793. The reversal of 2104875785 is 5875784012.

It can be written as a sum of positive squares in 4 ways, for example, as 198330889 + 1906544896 = 14083^2 + 43664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2104875785 - 2² = 2104875781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2104875781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483950 + ... + 488279.

It is an arithmetic number, because the mean of its divisors is an integer number (316460865).

Almost surely, 2^2104875785 is an apocalyptic number.

It is an amenable number.

2104875785 is a deficient number, since it is larger than the sum of its proper divisors (426811135).

2104875785 is an equidigital number, since it uses as much as digits as its factorization.

2104875785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972667.

The product of its (nonzero) digits is 627200, while the sum is 47.

The square root of 2104875785 is about 45878.9252816585. The cubic root of 2104875785 is about 1281.5694828598.

The spelling of 2104875785 in words is "two billion, one hundred four million, eight hundred seventy-five thousand, seven hundred eighty-five".